Patient medical parameter trend indicative user interface display system
A system according to invention principles advantageously automatically displays a parameter value within the closest Flowsheet parameter acquisition time interval column. A user interface system provides patient medical parameter data for trend indicative display covering a time period comprising user selectable acquisition time intervals. The system includes an acquisition processor for acquiring, from a patient monitoring device, data representing a patient parameter comprising a plurality of data values at a corresponding plurality of different times within multiple user selectable patient parameter acquisition intervals of a time period. The data processor determines for a particular user selectable acquisition time interval a patient parameter data value closest in time to a center time point of the particular user selected acquisition time interval and excludes other patient parameter data values acquired within the particular user selectable acquisition time interval. A generator generates data representing an image showing a trend indicative display of the patient parameter including the determined patient parameter data value associated with the particular user selectable acquisition time interval and omits the excluded data values.
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This is a non-provisional application of provisional application Ser. No. 60/374,908 by A. M. Manetta et al. filed Apr. 23, 2002 and of provisional application Ser. No. 60/413,301 by J. Rutledge et al. filed Sep. 25, 2002. This application is related to application Ser. No. 10/359,673 filed Feb. 6, 2003 entitled A System and User Interface Supporting Trend Indicative Display of Patient Medical Parameters by A. M. Manetta et al.
FIELD OF THE INVENTIONThis invention is related to adaptively processing and displaying of medical information, and more particularly to processing and displaying patient medical data for user configurable display in a network environment.
BACKGROUND OF THE INVENTIONPatient medical parameter data is acquired, collated, stored and displayed for use in providing patient clinical care in hospitals, clinics, and other healthcare delivery settings. Patient medical parameter data may include vital signs ventilator information, infusion pump data associated with fluid delivery and other data. Such patient medical parameter data is typically displayed on a patient monitoring device screen in a trend indicative chart with a time axis. This type of chart is commonly termed a Flowsheet. A patient monitoring device is usually located at a patient bedside or nursing station in a hospital ward or in an intensive care, surgical or other location and may be connected to a network such as the Internet, a LAN, a WAN or an intra-net for acquiring patient parameter data from local sources (e.g., patient attached sensors) or remote sources (e.g., a remotely stored electronic patient record). The Flowsheet is an electronic chronological chart of patient information that substitutes for a paper vital sign Flowsheet. It is desirable that an electronic Flowsheet offer similar or better features and flexibility than a paper Flowsheet chart that it replaces
An electronic Flowsheet provides a trend indicative display covering a time period comprising user selectable patient parameter acquisition time intervals. A user selectable acquisition time interval is represented by a column in the Flowsheet and covers a time period (typically 3 minutes to 4 hours or another user selectable time interval) in which patient parameters are acquired. A problem occurs in known Flowsheet systems in selecting a parameter value to represent a particular parameter acquistion time interval in a trend indicative display. Specifically, in known systems a parameter value displayed in a particular acquistion time interval may not be representative of the time interval. This happens in known systems that label the acquisition time intervals with a displayed time value and automatically allocate a parameter value, received at a specific time, to a displayed labeled interval that precedes or includes the labeled time value. Similarly, it happens in known systems that automatically allocate a parameter value, received at a specific time, to a displayed labeled interval that follows or includes the labeled time value. Using these known systems, a displayed labeled interval may display a parameter value that is closer to an adjacent time interval and consequently present a misleading trend indicative display to a user. In such a known system, a manually entered parameter value or a parameter value indicated as accurate by a user may similarly be misleadingly displayed in an incorrect labeled time interval. A system according to invention principles addresses these problems and derivative problems.
SUMMARY OF THE INVENTIONA system according to invention principles advantageously automatically displays a parameter closest in time to a centre time point of a particular Flowsheet parameter acquisition time interval column. A system provides patient medical parameter data for trend indicative display covering a time period comprising user selectable acquisition time intervals. The system includes an acquisition processor for, receiving user entered data identifying an acquisition time interval duration and acquiring data representing a patient parameter comprising a plurality of data values at a corresponding plurality of different times within multiple patient parameter acquisition time intervals individually having the duration. A data processor for determining, for the multiple patient parameter acquisition time intervals of the duration, patient parameter data values closest in time to substantial centre time points of the multiple patient parameter acquisition time intervals and for excluding other patient parameter data values acquired within the multiple patient parameter acquisition time intervals.
In the drawing:
The inventors have recognized that it is desirable to provide a digital Flowsheet that automatically displays a selected parameter value in a particular Flowsheet time interval column closest in time to a centre time point of the particular Flowsheet column. For this purpose, the system advantageously stores and examines parameters acquired within half an acquisition time interval either side of the centre time point of the particular Flowsheet column. The system selects from the examined parameter values, a parameter value for display in the particular Flowsheet column that is measured at a time closest to the centre time point of the particular Flowsheet column. However, a manually entered parameter value for a particular Flowsheet acquisition time interval is taken as representative of the Flowsheet acquisition interval and is not replaced by an automatically received parameter value. This is so even if the automatically received value is closer to a Flowsheet acquisition interval centre time. A user entered parameter value, indicated as validated in response to user command via a displayed image, is not replaced by automatically acquired patient parameter data.
As shown In
Although not shown in
According to the principles of the present invention, executable application 19 (or multiple applications in another embodiment) resides on central server 20 on LAN 3 for gathering and processing data from the peripheral medical devices or facilities coupled to LAN 3 or hospital LAN 4, including laboratory results supplied via laboratory system 17 connected through an HL7 interface, for example. Additional medical parameter data including additional laboratory results acquired from any number of medical devices such as those shown in
Patient parameter data acquired from patient attached equipment may be characterized as of continuous or discrete type. Continuous patient parameter data is periodically sampled and acquired at intervals typically of higher frequency than a displayed acquisition interval and discrete patient parameter data is acquired at non-periodic intervals (e.g., upon nurse measurement initiation) or at periodic intervals of relatively low frequency compared to continuous patient parameter data. Application 19 automatically advantageously filters acquired continuous patient parameter data by selecting a patient parameter value that substantially occurs at (or is reasonably near) the centre time of an individual acquisition time interval for display in a Flowsheet column representing an acquisition time interval. Specifically, the selected continuous patient parameter value is incorporated in an Internet compatible (web based) Flowsheet column representing the individual acquisition time interval. Application 19 automatically advantageously filters discrete acquired patient parameter data by selecting a patient parameter value that occurs at a time closest to the centre time of an individual acquisition time interval for display in a Flowsheet column. Further, application 19 supports generation of a Cursor Tool and user interface image windows enabling a clinician (or other user) to examine, edit, validate or annotate filtered data points or to select alternative acquired patient parameter data points to represent Flowsheet column acquisition intervals (and to override automatically filtered data).
Application 19 provides a user interface trend indicative display of patient parameters (a Flowsheet) covering a time period comprising user selectable acquisition time intervals. A user selectable acquisition time interval represented by a column in the Flowsheet covers a time period (typically 3 minutes to 4 hours or another user selectable range) in which patient parameters are acquired. Application 19 automatically filters acquired patient parameter data by selecting a patient parameter value for display in a Flowsheet column representing an individual acquisition time interval. Specifically, the selected patient parameter value is incorporated in an Internet compatible (web based) Flowsheet column representing the individual acquisition time interval.
Medical data and laboratory results may be continuously, periodically or non-periodically acquired and correlated with a given patient for storage in relational data base 25 within server 20. Data base 25 may be of the type used for storing relational data such as the Microsoft SQL server. In addition, application 19 may obtain patient parameter data and patient data comprising medical laboratory results that are first entered and stored, for example, in laboratory system 17 of
The patient parameter data values closest in time to the centre time points of the multiple patient parameter acquisition time intervals are determined by examining patient parameters acquired within substantially half an acquisition time interval either side of a centre time point. For a one hour interval a period of 30 minutes before and after the display column centre time point is examined. An acquisition time interval data value entered (or an existing data value marked) by a user, and thereby identified as being representative of a time interval, takes precedence over a data value determined to be closest in time to a centre time point of the time interval. Such a user entered or marked data value is not replaced by a data value selected based on closeness in time to a centre time point of the time interval. In response to user selection of a different acquisition time interval duration, application 19 repeats steps 204-210, and dynamically determines patient parameter data values closest in time to substantial centre time points of the multiple patient parameter acquisition time intervals of the new duration. Application 19 as previously described, excludes other patient parameter data values acquired within the multiple patient parameter acquisition time intervals of the new duration value.
Application 19 in step 212 generates data representing an image showing Flowsheet trend indicative display of patient parameter data values associated with multiple patient parameter acquisition time intervals and omitting excluded data values. Specifically, application 19 initiates generation of an image exemplified by the images of
In response to a user entering another Codeine dose of 20 units for that same patient at 14:01 pm, as indicated as item 310 in the image of
Display images of
In one aspect of the present invention, a user may use a Microsoft Windows compatible PC 26 or Windows NT compatible PC 39 as shown in
The Flowchart user interface display images, systems and processes presented in
Claims
1. A system for providing patient medical parameter data for trend indicative display covering a time period comprising user selectable acquisition time intervals, comprising:
- an acquisition processor for, receiving user entered data identifying an acquisition time interval duration, and acquiring data representing a patient parameter using a patient monitoring device having at least one patient connected sensor, the data representing the patient parameter comprising a plurality of data values at a corresponding plurality of different times within multiple patient parameter acquisition time intervals individually having said duration; and
- a data processor for determining, for said multiple patient parameter acquisition time intervals having said duration, patient parameter data values closest in time to substantial centre time points of said multiple patient parameter acquisition time intervals and for excluding other patient parameter data values acquired within said multiple patient parameter acquisition time intervals.
2. A system according to claim 1, including
- a generator for generating data representing an image showing a trend indicative display of said plurality of patient parameter data values associated with said multiple patient parameter acquisition time intervals and omitting said excluded data values.
3. A system according to claim 1, wherein
- said acquisition processor receives user entered data identifying a second acquisition time interval duration, and
- said data processor dynamically determines, for multiple patient parameter acquisition time intervals of said second duration, patient parameter data values closest in time to substantial centre time points of said multiple patient parameter acquisition time intervals of said second duration and excludes other patient parameter data values acquired within said multiple patient parameter acquisition time intervals of said second duration.
4. A user interface system for providing patient medical parameter data for trend indicative display covering a time period comprising user selectable acquisition time intervals, comprising:
- an acquisition processor for acquiring data representing a patient parameter using a patient monitoring device having at least one patient connected sensor, the data representing the patient parameter comprising a plurality of data values at a corresponding plurality of different times within multiple user selectable patient parameter acquisition intervals comprising a time period;
- a data processor for determining for a particular user selectable acquisition time interval a patient parameter data value closest in time to a substantially centre time point of said particular user selected acquisition time interval and for excluding other patient parameter data values acquired within said particular user selectable acquisition time interval; and
- a generator for generating data representing an image showing a trend indicative display of said patient parameter including said determined patient parameter data value associated with said particular user selectable acquisition time interval and omitting said excluded data values.
5. A user interface system according to claim 4, wherein
- in response to user selection of a plurality of second acquisition time intervals comprising said time period and said second acquisition time interval is different to said particular user selectable acquisition time interval,
- said data processor automatically determines another patient parameter data value closest in time to a centre time point of said second acquisition time interval and excludes other patient parameter data values acquired within said second acquisition time interval.
6. A user interface system according to claim 4, wherein
- in response to user command and entry of a patient parameter data value,
- said data processor uses said user entered data value as said determined patient parameter data value associated with said particular user selectable acquisition time interval and excludes other patient parameter data values acquired within said particular user selectable acquisition time interval.
7. A user interface-system according to claim 6, wherein
- said data processor excludes a non-user entered patient parameter data value acquired within said particular user selectable acquisition time interval, said non-user entered patient parameter data value being closer in time to said centre time point of said particular user selected acquisition interval.
8. A user interface system according to claim 4, wherein
- said patient parameter comprises at least one of, (a) a blood pressure parameter, (b) a ventilation parameter, (c) a vital sign parameter, (d) a blood oxygen concentration representative parameter, (e) an infusion pump parameter associated with fluid delivery.
9. A user interface system according to claim 4, wherein
- said data processor determines said patient parameter data value closest in time to a centre time point of said particular user selected acquisition time interval by examining patient parameters acquired within substantially half an acquisition time interval either side of said centre time point.
10. A user interface system according to claim 4, wherein
- in response to a user positioning a cursor in the proximity of said patient parameter point in said image showing said trend indicative display, a time associated with at least one of, (a) measurement and (b) acquisition, of said patient parameter point is displayed.
11. A user interface system according to claim 4, wherein
- said acquisition processor acquires said data representing a patient parameter comprising said plurality of data values from a patient monitoring device.
12. A method for providing patient medical parameter data for trend indicative display covering a time period comprising user selectable acquisition time intervals, comprising the activities of:
- receiving user entered data identifying an acquisition time interval duration;
- acquiring, from a patient monitoring device using at least one patient connected sensor, data representing a patient parameter comprising a plurality of data values at a corresponding plurality of different times within multiple patient parameter acquisition time intervals individually having said duration;
- determining, for said multiple patient parameter acquisition time intervals having said duration, patient parameter data values closest in time to substantial centre time points of said multiple patient parameter acquisition time intervals; and
- excluding other patient parameter data values acquired within said multiple patient parameter acquisition time intervals.
13. A non-transitory storage medium according to claim 12, including computer readable instructions for implementing the activities of claim 12.
14. A method for providing patient medical parameter data for trend indicative display covering a time period comprising user selectable acquisition time intervals, comprising the activities of:
- acquiring, from a patient monitoring device, data representing a patient parameter comprising a plurality of data values at a corresponding plurality of different times within multiple user selectable patient parameter acquisition intervals comprising a time period;
- determining for a particular user selectable acquisition time interval a patient parameter data value closest in time to a substantially centre time point of said particular user selected acquisition time interval;
- excluding other patient parameter data values acquired within said particular user selectable acquisition time interval; and
- generating data representing an image showing a trend indicative display of said patient parameter including said determined patient parameter data value associated with said particular user selectable acquisition time interval and omitting said excluded data values.
15. A non-transitory storage medium according to claim 14, including computer readable instructions for implementing the activities of claim 14.
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Type: Grant
Filed: Apr 11, 2003
Date of Patent: Oct 9, 2012
Patent Publication Number: 20040002874
Assignee: Draeger Medical Systems, Inc. (Andover, MA)
Inventors: Judith Shaffer (Orchard Park, NY), Mark Penny (Salem, MA), Rand J. Monteleone (Acton, MA), Amy M. Manetta (North Billerica, MA), Jolyn Rutledge (Amesbury, MA)
Primary Examiner: Jordany Nunez
Attorney: Jack Schwartz and Associates, PLLC
Application Number: 10/411,950
International Classification: G06F 3/048 (20060101); G06F 17/21 (20060101); G06F 17/00 (20060101); G06Q 10/00 (20120101); G08B 23/00 (20060101);